From kde-core-devel  Thu Oct 21 13:46:22 1999
From: weis <weis () stud ! uni-frankfurt ! de>
Date: Thu, 21 Oct 1999 13:46:22 +0000
To: kde-core-devel
Subject: more on killu
X-MARC-Message: https://marc.info/?l=kde-core-devel&m=94051363811356

Hi,

there is one more thing:

One may not use setWorldMatrix or setClipRegion directly
in canossa, since canossa passes you a QPainter for drawing
that may already be rotated/scaled/clipped.

Of course you can rotate, scale, clip etc. as usual, but you
must do additional! rotations, scaling etc.
And always add! clip regions, dont just set them.

So for rotation do for example:

QWMatrix m = painter.worldMatrix();
m.rotate ....
painter.setWorldMatrix( m ).

Thanks!

Bye
Torben